Shrinkage During Chastity Lockup

I’m new to chastity and have built up over time. Now I am going without, on day 14 of 30. I’ve been let out for a few days but still not allowed an orgasm. I notice that after about day 12 my balls and penis stay shrunk constantly, like it’s cold, and when I touch myself there is no longer an instant erection. But at night everything is normal. I quite like this as it turns me on. However, I’d like to know why it happens and why only after about 12 days without orgasm.

Temperature changes can cause this as fall approaches depending on where you live. It's either that or it is all in your head. Chastity isn't going to shrink anything significantly unless a long time has passed, and even then it should return to normal size very quickly.

Shrinkage is temporary. Even after months of 24/7 in chastity, when I used to be unlocked, it took me a few hours to come back to normal. But yes, in long term chastity, erections become mild while locked. Of course this is my experience. You can read more discussions in the following thread the referenced community page.